<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    
</body>
</html>
<script>
    let obj = { name:'蔡徐坤',age:24,money:1000000,hobby:['唱歌','跳舞','rep'] }
    function copy(obj){
        let obj2 = Array.isArray(obj) ? [] : {}
        for( let key in obj ){
            console.log(obj[key]);
            if( typeof obj[key] === 'object' ){
                 obj2[key] = copy(obj[key])
            }else{
                 obj2[key] = obj[key]
            }

        }
        return obj2
    }
    
    let x = copy(obj)
    // console.log(obj , x);
    // x.hobby.push('打篮球')
    // console.log(obj , x);
        
        
</script>